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S31730 Stainless Steel vs. Z21721 Zinc

S31730 stainless steel belongs to the iron alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 40
40
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 77
35
Tensile Strength: Ultimate (UTS), MPa 540
150
Tensile Strength: Yield (Proof), MPa 200
120

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Maximum Temperature: Mechanical, °C 990
90
Melting Completion (Liquidus), °C 1430
410
Melting Onset (Solidus), °C 1390
390
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 16
26

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.0
6.6
Embodied Carbon, kg CO2/kg material 4.6
2.8
Embodied Energy, MJ/kg 63
53
Embodied Water, L/kg 180
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
57
Resilience: Unit (Modulus of Resilience), kJ/m3 99
88
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 19
6.4
Strength to Weight: Bending, points 18
9.6
Thermal Shock Resistance, points 12
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 4.0 to 5.0
0 to 0.0050
Iron (Fe), % 52.4 to 61
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 15 to 16.5
0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
98.9 to 100